1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SYSTEM_MEDIA_CONTROLS_SYSTEM_MEDIA_CONTROLS_H_
#define COMPONENTS_SYSTEM_MEDIA_CONTROLS_SYSTEM_MEDIA_CONTROLS_H_
#include <string>
#include "base/component_export.h"
#include "base/functional/callback.h"
#include "services/media_session/public/cpp/media_position.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace remote_cocoa {
class ApplicationHost;
}
namespace system_media_controls {
class SystemMediaControlsObserver;
// OSes often provide a system-level media controls API (e.g. Media Player
// Remote Interfacing Specification on Linux or System Media Transport Controls
// on Windows). These tend to have similar APIs to each other.
// SystemMediaControls is a platform-agnostic API that clients can use to
// interface with the operating system's media controls API if it exists.
class COMPONENT_EXPORT(SYSTEM_MEDIA_CONTROLS) SystemMediaControls {
public:
enum class PlaybackStatus {
kPlaying,
kPaused,
kStopped,
};
#if BUILDFLAG(IS_MAC)
static std::unique_ptr<SystemMediaControls> Create(
remote_cocoa::ApplicationHost* application_host);
#else
// `window` used by Windows OS for web app (dPWA) connections.
static std::unique_ptr<SystemMediaControls> Create(
const std::string& product_name,
int window = -1);
#endif // BUILDFLAG(IS_MAC)
virtual ~SystemMediaControls() = default;
virtual void AddObserver(SystemMediaControlsObserver* observer) = 0;
virtual void RemoveObserver(SystemMediaControlsObserver* observer) = 0;
// Enable or disable the service.
virtual void SetEnabled(bool enabled) = 0;
// Enable or disable specific controls.
virtual void SetIsNextEnabled(bool value) = 0;
virtual void SetIsPreviousEnabled(bool value) = 0;
virtual void SetIsPlayPauseEnabled(bool value) = 0;
virtual void SetIsStopEnabled(bool value) = 0;
virtual void SetIsSeekToEnabled(bool value) {}
// Setters for metadata.
virtual void SetPlaybackStatus(PlaybackStatus value) = 0;
virtual void SetID(const std::string* value) {}
virtual void SetTitle(const std::u16string& value) = 0;
virtual void SetArtist(const std::u16string& value) = 0;
virtual void SetAlbum(const std::u16string& value) = 0;
virtual void SetThumbnail(const SkBitmap& bitmap) = 0;
virtual void SetPosition(const media_session::MediaPosition& position) {}
// Helpers for metadata
virtual void ClearThumbnail() = 0;
virtual void ClearMetadata() = 0;
virtual void UpdateDisplay() = 0;
// Helpers for testing only.
static void SetVisibilityChangedCallbackForTesting(
base::RepeatingCallback<void(bool)>*);
virtual bool GetVisibilityForTesting() const = 0;
virtual void SetOnBridgeCreatedCallbackForTesting(
base::RepeatingCallback<void()>) {}
};
} // namespace system_media_controls
#endif // COMPONENTS_SYSTEM_MEDIA_CONTROLS_SYSTEM_MEDIA_CONTROLS_H_
|
